Amazon Books Don  Lancaster's Guru's Lair
GuruGrams         
 
  
auctions bargains books contact email home library map ?new? rss
 
search Guru's Lair
Energy
Intro
Solar PV
Intro
eBay
store
InfoPack
Consult
Auction
Finder
MagSine
Tutorial
MagSine
Chips!

Don Lancaster's GuruGrams are a continuation of his earlier Tech
Musings
print and ezine series. These are generally single topic
tech ap notes made web friendly through non-print layouts and tight
resource linking. Topics are often more technical and more advanced
than those that appear in the Blatant Opportunist series.

Note: Starting with #22, Blatant Opportunist columns are now being
done in the GuruGram format.

Many of our earlier apnotes and related resources should eventually
get updated and improved into this series. Your support as a
Banner
Advertiser
or Synergetics Partner can make this happen.

  The GuruGrams: .
 top   bot 


   Prehistoric Hanging Canals HANGCAN1.PDF   #108
     A survey of an astonishing collection of prehistoric hanging
     canals
found in the Safford Basin of the Upper Gila Valley.
     Some are 90 meters above the valley terain!                              06/10

Click here for a Hanging Canyon..image.
Click here for the GuruGram 108 source code.
Click here to Contact the Author directly.

   Magic Sinewave Developments RECENTMS.PDF   #107
     An update and review of the five magic sinewave types that include
     Best Efficiency, Bridged Best Efficiency, Regular, Bridged Nonzero
     and Delta Friendly. Plus calculator enhancements.                           05/10

Click here for the Magic Sinewave Calculator.
Click here for the GuruGram 107 source code.
Click here to Contact the Author directly.

   Enhancing your eBay Skills ENHEBAY8.PDF #106
     Continuing the series with Alternatives, Freight solutions, image
     theft, PostScript tricks, really dumb newbie blunders, circular
     bitmap lettering, bulk auction bids, penny auction scams,...         04/10

Click here to reach Enhance I
Click here to reach Enhance II
Click here to reach Enhance III
Click here to reach Enhance IV
Click here to reach EnhanceV
Click here to reach EnhanceVI
Click here to reach EnhanceVII
.
Click here for the GuruGram 106 source code.
Click here to Contact the Author directly.

    Some Link Checking Utilities LINKCHECK.PDF   #105
     A summary of tools and utilities useful for website link checking.
     Includes new Firefox plugins, and my own PostScript routines
     for error seaching, 404 finding, 500 finding
, and more                  03/10

Click here to reach the PostScript library..
Click for the PS  ERRSRCHA.PSL.utility.

Click for the PS  ERR404A.PSL.utility.
Click for the PS  ERR500A.PSL.utility.

Click here for the GuruGram 105 source code.
Click here to Contact the Author directly.

   uv Lamp Debugging Secrets UVDEBUG1.PDF   #104
     Some major hassles were encountered in converting a pile of
     distress uv lamps into marketable eBay products. Here is a
     rundowm of the tools and techniques eventually involved.           2/09

Click here for the uv Lamp Schematic..
Click here for the GuruGram 104 source code.
Click here to Contact the Author directly.

    Book Scanning "Gutter Math" GUTTER01.PDF   #103
       An analysis of the typical shape of an open book as may be
      encountered during scanning. Along with correction flattening
      procs. Often a sparce Taylor Series will suffice.                            12/09

Click here to reach the PostScript library..
Click here for the PS Gonao Utilities. .

Click here for the GuruGram 103 source code.
Click here to Contact the Author directly.

    PS Web Validation Utilities PSXHTML1.PDF #102
     Getting older websites HTML4 or XHTML compatible can be a
     very painful process. These utilities greatly ease ampersand
     conversion, JavaScript repair, and page updates
.              11/09

Click here to reach the PostScript library..
Click here for the PS Gonao Utilities..

Click here for the GuruGram 102 source code.
Click here to Contact the Author directly.

    PV PANEL INTRO SUMMARY  PVLECT2.PDF #101
       Not one net watthour of pv energy has ever been generated! Here are
     the facts on why pv solar electricity today is neither renewable nor
     sustainable
, Emphasis is on fundamental physics and CIGS.       11/08

Click here for an Energy Fundamentals I tutorial..
Click here for an Energy Fundamentals II tutorial..

Click here for the GuruGram 101 source code.
Click here to Contact the Author directly.

   Energy Intro & Summary NRGLECT2.PDF #100
      Nearly everything you" know" about energy and alternate energy is
     "not even wrong". Slide show type tutorial gets the facts straight for
     you.. Focuses on the importance of exergy and net energy.          11/08      

Click here for an Energy Fundamentals I tutorial..
Click here for an Energy Fundamentals II tutorial..

Click here for the GuruGram 100 source code.
Click here to Contact the Author directly.

   Filterless Magic Sinewaves? MSNOFILT.PDF #99
      Continuing unproven speculation on methods to dramatically
      reduce magic sinewave uncontrolled harmonics
. Much more work
  
  remains to be done on these cancellation possibilities.                   07/08

Click for a Magic Sinewave tutorial.
Click here for the GuruGram 99 source code.
Click here to Contact the Author directly

   Mt. Graham Aerial Tramway TRAMSHOW.PDF" #98
     A combination of artwork and resources used for a lecture on the
    Mount Graham Aerial Tramway. Combines new artwork with my
   own paper and historical documents.                                                 08/08

Click for our Gila Valley Dayhikes library.  
Click here for the GuruGram 98 source code.
Click here to Contact the Author directly.

   GGMS "Split" Magsic Sinesves GGMS.PDF #97
     Continuing unproven speculation on methods to dramatically
     reduce magic sinewave uncontrolled harmonics
. Much more work
  
  remains to be done on this exciting possibility.                              06/08

Click for a Magic Sinewave tutorial.
Click here for the GuruGram 97 source code.
Click here to Contact the Author directly.
.

   Enhancing eBay Skills VII ENHEBAY7.PDF #96
     Regional data mining. Digging deeper. Seeking obscurity. Rounding
     bitmap corners. Auction strategy. Resetting to zero. Refund policies.
     Two auctions at once. IP violations. Staying lean and mean.         09/08

Click here for the Enhance VII reprint.
Click here for the Enhance VI reprint
.
Click here for the Enhance V reprint.
Click here for the Enhance IV reprint
.
Click here for the Enhance III reprint
.
Click here for the Enhance II reprint
.
Click here for the Enhance I reprint
.

Clickto reach the Auction Help library.
Click here for the GuruGram 96 source code.
Click here to Contact the Author directly.

   Spread Spectrum Magsines MSSSCS.PDF #95
     Some not yet proven or fully developed approaches to reducing
     additional magic sinewave harmonics through cancellation schemes
.
     Much more work remains to be done on this exciting possibility..   07/08

Click for a Magic Sinewave tutorial.
Click here for the GuruGram 93 source code.
Click here to Contact the Author directly.

   New Magic Sinewave Calculator NUCALC23.PDF" #94
     An expanded and improved Magic Sinewave calculator is now much
     faster and uses better algorithms.
Currently usable for n=23 or
     fewer pulses per quadrant of mainstream MS types.                       06/08

Click for the actual Magic Sinewave calculator.
Click here to reach the Magic Sinewave
library.

Click here for the GuruGram 94 source code.
Click here to Contact the Author directly.

   Trashing Auto Electrolysizers TRASHELC.PDF #93
     Reviews the fundamental technical reasons why onboard
     alternator driven vehicle hydrogen injection electrolysizers can
     not possibly work
and flat out ain't gonna happen.                        06/08

Click for a Bashing Pseudoscience tutorial.
Click here for the GuruGram 93 source code.
Click here to Contact the Author directly.

   Bitmap Circular Lettering BMCIRLET.PDF" #92
     Reviews earlier ultra high legibility, low resolution.BMP bitmap
     typrogray tools. Adds cylindrical,  perspective, and circular
     lettering.
  Shows how to deal with logos.                                    05/08

Click here for the GuruGram 92 source code.
Click here to Contact the Author
directly.

   Bitmap Perspective Lettering BMPERLET.PDF" #91
     A tutorial on a utility that allows you to take a "flat" mixed text and
     graphics bitmap, distort it for left or right architect's perspective,
     and paste it into a final bitmap for "infinite depth of field".           02/08

Click for the BMPERLET1.PSL utility.
Click here for the GuruGram 91 source code.
Click here to Contact the Author directly.

   Architect's Perspective Utilities ARCHPERS.PDF #90
     A tutorial on an updated and improved "tilt corrector" used to
     provide perfectly vertical alignment on a product or building
     image. Includes math derivation and improved data input               05/08

Click for the ARCHPER1.PS utility.
Click here for the GuruGram 90 source code.
Click here to Contact the Author directly.

   Mt. Graham Lumber Tram History TRAMHIST.PDF #89
     A machine readable and online reprint of a hard to find key
     historical document for the Mt. Graham Tramway. L.O. Martini's
    Partial History of the Gila Lumber and Milling Company.              05/08

Click for my Mt. Graham Tramway story.
Click here for the GuruGram 89 source code.
Click here to Contact the Author directly.

   Image Post Processing Tools POSTPROC.PDF #88
     A tutorial review of all of our post processing and bitmap
     manipulation current tools.
Includes details of key variables
    and proc use details.                                                                            03/08

Click here for the GuruGram 88 source code.
Click here to Contact the Author directly.

   A Digital Airbrushing Algorithm AIRBRUSH.PDF #87
     A tutorial on our new classic but surptisingly sophisticated bitmap
     airbrushing tool
. Takes four points of a selected quadralateral and
    provides a smooth two dimensional gradient between them.        03/08

Click for the AIRBRUT1.PSL actual utility .
Click here for the GuruGram 87 source code.
Click here to Contact the Author directly.

   More Energy Fundamentals MORENRGF.PDF #86
     An update and expansion of our classic Energy Fundamentals tutorial.
     Dimes versus kilowatt hours. Exergy. Net Energy. Amortization. pv
     CIGS and new developments. Economy of scale. Grid storage.     02/08

Click for the original Energy Fundamentals paper.
Click here for the GuruGram 86
source code.
Click here to Contact the Author
directly.

   Inverse Graphics Transforms INVEGRAF.PDF #85
        When modifying graphics images, an inverse or "comes from"
     transform
may be needed instead of the usual "goes to" Tutorial and

     examples show some of the math techniques involved.                 12/07

Click here for a Nonlinear Graphics tutorial.
Click here to Contact the Author directly.

Click here for the GuruGram 85 source code.
Click here for the PostScript library.

   Bitmap to PS Array Conversions BMP2PSA.PDF #84
     Bitmap images can be extensively modified in subtle ways by first
     converting them to a PostScript array of strings. Turotial and core
     utility routines for an upcoming series of image tools.
                12/07

Click here for the GuruGram 84 source code.
Click here to Contact the Author
directly.

   Pixel Interpolation Algorithms PIXINTPL.PDF #83
       A review of popular pixel interpolation schemes including Bilinear,
     Nearest Neighbor, Bilinear with lookup, Modified 3x3, and Bicubic.
     Includes detailed bicubic math derivation. .                                    11/07

Click here for the Pixel Interpolation utility.
Click here for the Pixel Interpolation
demo..

Click here for the PostScript library.
Click here for the GuruGram 83
source code.
Click here to Contact the Author
directly.

   False Color & Rainbow Mods FALSECLR.PDF #82
       Tutorial and sourcecode shows how to improvea false color and
     rainbow effects by equalizing saturation and modifying hues.
     Includes table lookups exportable to most any language.          11/07

Click here for the PostScript library.
Click here for the GuruGram 82
source code.
Click here to Contact the Author
directly.

   2-Way linking of HTML & PDF TWOWAYLK.PDF #81
       Update of older tutorial reviews how to do two way linking of
     HTML files and Acrobat PDF files
. Based on using HTML anchors
     and Acrobat named destinations.                                                        10/07

Run the older Two way linking demo.
Click here for the Acrobat
library.

Click here for the GuruGram 81
source code.
Click here to Contact the Author
directly.

   Cubic Spline min point distance CMINDIST.PDF #80
       A tutorial and math derivation of finding the mininum distance
     between a point and a cubic spline
. Successive approximation
     is required for an exact solution.                                                        08/07

Click here for the Cubic Spline library.
Click here for the GuruGram 80
source code.
Click here to Contact the Author
directly.

   Gonzo PostScript Utilities Guide GONZOTUT.PDF #79
       The long overdue tutorial and directory to my Gonzo utilities. These
     are a combined PS pagemaking and illustration package that features
     super quality text justification, electronic schematics, more.         08/07

Click here for the Gonzo PostScript utilities.
Click here for the PostScript
library.

Click here for the GuruGram 79
source code.
Click here to Contact the Author
directly.

   Enhancing Your eBay Skills VI ENHEBAY6.PDF #78
       The Latest in a continuing series of eBay insider techniques.
     Rights of abandonment. Barbie Dolls. Your own custom listings.
     Inventory controls. On staying tightly focused. Image inserts    .  08/07

Click here for our "eBay Auction offerings.
Click here for our Auction Help
library.

Click here for the Enhance VII reprint.
Click here for the Enhance VI reprint
.
Click here for the Enhance V reprint.
Click here for the Enhance IV reprint
.
Click here for the Enhance III reprint
.
Click here for the Enhance II reprint
.
Click here for the Enhance I reprint
..

Click here for the GuruGram 78
source code.
Click here to Contact the Author
directly.

   Gauss Jordan Equation Solver GAUSSJOR.PDF #77
       A tutorial and amazingly compact JavaScript routine to use Gauss
     Jordan techniques to solve nxn linear equations
. Excerpted from
     GuruGram #73.                                                                                       07/07

Click here for the Demo Software.
Click here for the Math Stuff library.
Click here for the Magic Sinewave
library.

Click here for a Magic Sinewave
tutorial.
Click here for a Magic Sinewave
slide show.
Click here for a Magic Sinewave
proposal.

Click here for the GuruGram 77
source code.
Click here to Contact the Author
directly.

   PostScript Numeric Reporter PS8DPRP1.PDF #76
       PostScript normally only reports numerics to six decimal points.
     Utility and tutorial extends this to nearly eight decimal points over
     a fairly wide numeric range.                                                                07/07

Click here for the Numeric Reporting iutility..
Click here for the PostScript library.

Click here for the GuruGram 76 source code.
Click here to Contact the Author
directly.

   Acrobat PDF Post Doc Editing PDFEDIT1.PDF #75
       A tutorial on PostScript based utilities and tools that let you edit
     existing Acrobat .pdf" files
. Edited files can often be ridiculously
     shorter and faster running and offer other capabilities.                   07/07

Click here for the PostScript library.
Click here for the Acrobat
library.

Click here for the GuruGram 75
source code.
Click here to Contact the Author
directly.

   What is the best eBay price? EBAYSTAT.PDF #74
       Some eBay analysis tools that let you evaluate optimal eBay
     pricing.
Many rude surprises of eBay interest and response
    are revealed here.                                                                                 06/07

Click here for our eBay Auction offerings.
Click here for our Auction Help
library.

Click here for the GuruGram 74
source code.
Click here to Contact the Author
directly.

   Ultra Fast MagSine Calculator FASTMSSOL.PDF #73
       The very first in a new series of ultra fast and nearly deterministic
     Magic sinewave calculators. These are hundreds to thousands of
     times faster and more convenient than before. Tutorial review     . 05/07

Click here for the Ultra Fast MS Calculator.
Click here for the Angle Position Plots
.

Click here for the Magic Sinewave library.
Click here for a Magic Sinewave
tutorial.
Click here for a Magic Sinewave
slide show.
Click here for a Magic Sinewave
proposal.

Click here for the GuruGram 73
source code.
Click here to Contact the Author
directly.

   Deterministic Magsine Solutions DETMSSOL.PDF #72
       A preliminary background approach to much faster and potentially
     deterministic magic sinewave
solutions. See more recent GuruGrams
     for further significant improvements.                                                  12/06

Click here for the Magic Sinewave library..
Click here for a Magic Sinewave
tutorial.

Click here for the GuruGram 72 source code.
Click here to Contact the Author
directly.

   Enhancing your eBay Skills vol.V ENHEBAY5.PDF #71
        Storage guidelines. The Government Liquidation saga. Multi-day
     auctions. More imaging tips. Secrets of winning websites. Why
     eBay is not Walmart. Controlling closure. More...                          12/06

Click here for the Auction Help library.
Click here to reach our eBay auctions.

Click here for the Enhance VII reprint
.
Click here for the Enhance VI reprint
.
Click here for the Enhance V reprint.
Click here for the Enhance IV reprint
.
Click here for the Enhance III reprint
.
Click here for the Enhance II reprint
.
Click here for the Enhance I reprint
.

Click here for the GuruGram 71 source code.
Click here to Contact the Author
directly.

   Enhancing your eBay Skills vol.IV ENHEBAY4.PDF #70
      Common eBay buyer and seller mistakes. Walmart auctions. Fixing
     image "whiteburn". Dealing with order mixups. Craig's lists. What to
     wear at a live auction. Resources. Cut and paste secrets. etc...    11/06

Click here for the Auction Help library.
Click here to reach our eBay auctions.

Click here for the Enhance VII reprint.
Click here for the Enhance VI reprint
.
Click here for the Enhance V reprint.
Click here for the Enhance IV reprint
.
Click here for the Enhance III reprint
.
Click here for the Enhance II reprint
.
Click here for the Enhance I reprint
.

Click here for the GuruGram 70 source code.
Click here to Contact the Author
directly.

   Cubic Spline Catenary Approx. BEZCAT.PDF #69
        A catenary is the shape a chain will assume hanging on its own
      weight. Tutorial explores cubic Bezier spline approximations to
      catenary curves.
. Includes examples .                                               11/06

Click here for the Cubic Spline library.
Click here for the Math Stuff
library.

Click here for the GuruGram 69 source code.
Click here to Contact the Author
directly.

   Tech Innovation Secrets TECHINOV.PDF #68
     A major tutorial on the Fundamental Factors driving recent technical
     innovation.
Decoupling. Accurate replication. Elimination of the
     gatekeepers. Computing power beyond awesome. More...             08/08

Click here for the Three Updates

Click here for the Blatant Opportunist library.
Click here for the Tech Musings
library.

Click here for the GuruGram 68 source code.
Click here to Contact the Author
directly.

   Solving Puzzles with PostScript PUZZLE1.PDF #67
       Uses several alphametic puzzles to demonstrate some PostScript
     Programming techniques
. The brute force and modified brute
     force methods can give fractional second solutions.                   06/06

Click here for the PostScript library.
Click here for the Math Stuff
library.

Click here for the GuruGram 67 source code.
Click here to Contact the Author
directly.

   A Newbie's Intro to the Web NEWBIE.PDF #66
       A Beginner's intro tutorial to the world wide web. Features & services
     Understanding URL's. Finding an ISP. Hardware & Software comm.
     Useful sites. Some cautions. Becoming an Alpha Geek..            06/06

Click here for the Webmastering library.
Click here for the Auction Help
library.

Click here for the GuruGram 66 source code.
Click here to Contact the Author
directly.

   Magic Sinewave Summary MSINEXEC.PDF #65
       An "executive summary" on magic sinewaves that gathers together
     the key features and development history from several earlierfiles
     Magic sinewaves offer efficiency and quality advantages.          06/08

Click here for the Magic Sinewave library.
Click here for a Magic Sineave
intro tutorial.

Click here for the GuruGram 65 source code.
Click here to Contact the Author
directly.

   Gonzo Utility Log Log Plots LOGLOG.PDF #64
    Ultra fancy engineering graphs and plots are quite easy using
    my PostScript Gonzo Utilities. Tutorial details new utility
    useful for creating log-log or semilog engineering plots..      05/06

Click here for the actual Log Log Utility.
Click here to download the Gonzo Utilities.

Click here for the PostScript library.
Click here for the GuruGram 64
source code.
Click here to Contact the Author
directly.

   Two Phase Magic Sinewaves MAGS2PH1.PDF #63
       A brief note that explores two phase magic sinewaves as might be
     useful for motor controls and I-Q modulation schemes. Two chip
     solutions appear cleaner and simpler than single chip ones.        03/06

Click here for the Magic Sinewave library.
Click here for a Magic Sineave
intro tutorial.

Click here for the GuruGram 63 source code.
Click here to Contact the Author
directly.

   Enhancing your eBay Skills III ENHEBAY3.PDF #62
     Continuing our series of eBay insider secrets. Image expansion and
     cross linking. More on HTML. Shilling again. Bailout guidelines.
     Exploring log files. No unhappy customers. Sellthru rates.        .  03/06

Click here for the Enhance VII reprint.
Click here for the Enhance VI reprint
.
Click here for the Enhance V reprint.
Click here for the Enhance IV reprint
.
Click here for the Enhance III reprint
.
Click here for the Enhance II reprint
.
Click here for the Enhance I reprint
.

Click here for our eBay Store.
Click here for the Auction Help
library.
Click here for the GuruGram 62
source code.
Click here to Contact the Author
directly.

   Book Cover Layout Utility BOOKCVR1.PDF #61
      A tutorial and companion utility that lets you do custom book
    cover layouts for self-publishing
. Includes barcode and ISDN
    access info, Distiller rotation lockout, images, borders, more....    03/06

Click for the Book Cover Layout utility.
Click to download Don's Gonzo Utilities
.
Click here for the PostScript
library.
Click here for the Book-on-Demand
library.


Click here for the GuruGram 61
source code.
Click here to Contact the Author
directly.

   Cubic Spline Length & Subdivision NUBZLEN1.PDF #60
     A tutorial and companion utility that lets you find the length of a
     Bezier Cubic Splin
e, as well as moving to any point on that curve,
     and subdividing into linear segments.                                               02/06

Click for the Spline Length & Subdivide utility.
Click here for the PostScript
library.
Click here for the Cubic Spline
library

.
Click here for the GuruGram 60
source code.
Click here to Contact the Author
directly.

   Cubic Spline through four points NUBZ4PTS1.PDF #59
     A tutorial and companion utility that lets you draw a Bezier Cubic
     spline through four data points, all of which are on the curve
.
     Both "good" and iterative "shortest" solutions are shown.       05/06.  

Click for the PostScript 4 point utility.
Click here for the PostScript
library.
Click here for the Cubic Spline
library.

Click here for the Guru 59
source code.
Click here to Contact the Author
directly.

   The math behind Cubic Splines CUBEMATH.PDF #58
       A tutorial on exactly where the underlying math behind Bezier
     cubic splines comes from.
Includes plots of Basis Functions and
     the "snake in the box" visualization.                                                   01/06

Click here for the Cubic Spline library.
Click here for the Guru 58
source code.
Click here to Contact the Author
directly.

   Circle Cubic Spline Approximation ELLIPSE4.PDF #57
     Circles and ellipses can be accurately approximated by four properly
    chosen cubic splines
. Tutorial derives the approximation math for
    various spline fits from two through eight.                                       12/05

Click here for the Cubic Spline library.
Click here for the ELLIPSE4.PSL
source code.
Click here to Contact the Author
directly.

   Universal .BMP  Manipulator UNIBMPM.PDF #56
     A PostScript framework that allows virtually any manipulation of the
     .BMP image forma
t. Done by writing the entire bitmap into memory
      at once as an array of PostScript strings. Easily extensible.          08/05

Click here for the Bitmap Manipulator utility.
Click here for the PostScript library.

Click for the UNIBMPM.PSL source code.
Click here to Contact the Author
directly.

   Image Keystone Correction Ap KEYCOR01.PDF #55
      An update and revision on our older swings and tilts utility that offers
    easier data entry, less trial and error, internal punchthru elimination
    and other advanced features.                                                                07/05

Click here for the Keystone Corrector utility.
Click for the KEYCOR01.PSL source code.

Click here to Contact the Author directly.

   Bitmap Perspective Lettering Ap PERSPEC1.PDF #54
       A brief note showing how to improve perspective lettering on a
     bitmap image
by rotating the image, unkeystoning it, using our
     bitmap typewriter and rotating back. Very impressive results.      07/05

Click here for the Keystone Corrector utility.
Click here for the Bitmap Typewriter
utility.

Click for the PERSPEC1.PSL source code.

Click here to Contact the Author directly.

   A Revised Bitmap Typewriter BMFAUTO1.PDF #53
     A major overhaul of our previous utilities that generate ultra legible
     small forts for bitmap image retouch
and other superlegibility apps.
     Fonts are now internally autogenerated on the fly.              rev 05/08

Click here for the Bitmap Typewriter utility.
Click here for the PostScript
library.

Click for the BMFAUTO1.PSL source code.

Click here to Contact the Author directly.

   Full Raw PostScript Transparency PSTRANS2.PDF #52
     Additions to Acrobat have finally made providing full transparency
     from PostScript easy and simple. A brief demo discusses the new
     SetTransparency PDFMark operator and how to use it. 
            05/05

Click here for the Transparency Demo utility.
Click for the PSTRANS2.PSL source code.

Click here to Contact the Author directly.

   An Ongoing Refurb Log REFURBLG.PDF #51
     A continuing weblog that reviews insider refurb secrets when and
     as they come up and are discovered. Some are electronic test gear
     specific, while other tips apply to nearly any refurb task.            05/05

Click here for the Thoughts on Refurb tutorial.
Click for the REFURBLG.PSL source code.

Click here to Contact the Author directly.

   Extreme Display Legibility Secrets LEGIBLE1.PDF #50
        A tutorial that shows you how to gain screen legibility that is better
     than the printed page!
Subpixel direct digital display addressing, true
     post anti-aliasing, authoring schemes for improved legibility...      05/05

Click here for the PostScript library.
Click hereto reach the Acrobat
library.

Click for the LEGIBLE1.PSL source code.

Click here to Contact the Author directly.

   Enhancing your eBay Skills II ENHEBAY2.PDF #49
       Tutorial on advanced eBay topics that include eBay phishing and
     fraud
, the 1-2-4-8 ploy, "perfect" auctions, "perfect" products, Bruno,
     secrets of triage, the Alvin piles, thoughts on refurb, more...       05/05

Click here for the Enhance VII reprint.
Click here for the Enhance VI reprint
.
Click here for the Enhance V reprint.
Click here for the Enhance IV reprint
.
Click here for the Enhance III reprint
.
Click here for the Enhance II reprint
.
Click here for the Enhance I reprint
.

Click here for the Auction Help library.
Click for the ENHEBAY2.PSL source code.

Click here to Contact the Author directly.

    Adding Flashing Text to Acrobat PDFFLASH.PDF #48
     A tutorial and set of utilities that let you add flashing text to Adobe
     Acrobat.
Process is fast and simple when using JavaScript over
     Acrobat. Included example flashes the tutorial title.                      03/05

Click here for the PostScript library.
Click here to reach the Acrobat
library.

Click for the PDFFLASH1.PSL source code.

Click here to Contact the Author directly.

   Real Time Acrobat Animation PDFANIM.PDF #47
       A tutorial and set of utilities that let you do real time Adobe Acrobat
     animation
using surprisingly compact files and easy commands. The
     specific example is of a Three Phase Power Simulation.              03/05

Click for the Three Phase Power animation example.
Click for the Rebounding EM theory tutorial.
Click here for the PostScript
library.

Click hereto reach the Acrobat
library
Click for the PDFAMIN.PSL source code.
Click here to Contact the Author directly.

   Acrobat .pdf" Content Extractor EXTRACT1.PDF #46
       A tutorial and set of utilities that let you extract text, url's, and other
     content from an Acrobat .pdf" file
. Also includes very useful word
     frequency analysis utilities. Requires uncompressed .pdf" files.   03/05

Click here for the PostScript library.
Click hereto reach the Acrobat library.
Click for the VIEWPDF1.psl" utility.
Click for Win UncompressPDF.API plugin.

Click for the EXTRACT1.PSL source code.
Click here to Contact the Author directly.

   Word Frequency Analysis WORDFRQ.PDF #45
     A tutorial and set of utilities for word frequency analysis. Used
     to improve author writing quality, to extract keywords from web
     pages, to generate indexes, or evaluate reading grade levels.    02/05

Click here for the PostScript library.
Click for the WORDFRQ1.PSL utility
.

Click here for the
WORDFREQ.PSL source code.
Click here to Contact the Author directly.

   Arizona Auction Resources Tour AZAUCT01.PDF #44
     A tutorial guided tour of some Arizona Auction Resources. Classified
     ads. Auctioneer associations. The biggies. Government Liquidation.
     Good old boys and gals. Schools. Heavy equipment. more...    03/05

Click here for the Auction Help library.
Click for a Custom Auction Finder resource

Click here for the
REBOUND1.PSL source code.
Click here to Contact the Author directly.

   Simple new EM field solutions REBOUND1.PDF #43
       Total Heresy new "Rebounding" method of solving electromagnetic
     fields that requires NO fancy math!
Zero Laplacian solution tutorial
     includes printed circuit, busbar, and 3-phase conduit examples.  05/05

Click here for the PostScript library.
Click for the PS Rebounding utility.

Click here for the
REBOUND1.PSL source code.
Click here to Contact the Author directly.

   PS Array to Image Conversion PSAR2IMG.PDF #42
     Extensive graphics calculations involving arrays in the PostScript
     language can be converted to compact and fast executing standard
     images
by using these obscure and little known techniques.   11/05 

Click here for the PostScript library.
Click here for the Original Slower demo.
Click for the PS Array to Image utility.


Click here for the
PSAR2IMG.PSL source code.
Click here to Contact the Author directly.

   Enhancing your eBay Skills I ENHEBAY1.PDF #41
       Tutorial on advanced eBay topics that include Vickrey auction
     theory
, the Uniform Commercial Code, currency thresholds,
     theft prevention, live auction guidelines, plus much more...        12/04

Click here for the Auction Help library.
Click to reach our eBay Store.

Click here for the Enhance VII reprint.
Click here for the Enhance VI reprint
.
Click here for the Enhance V reprint.
Click here for the Enhance IV reprint
.
Click here for the Enhance III reprint
.
Click here for the Enhance II reprint
.
Click here for the Enhance I reprint
.

Click here for the ENHEBAY1.PSL source code.
Click here to Contact the Author directly.

   MagSine PIC Programming Guide MSPICPRO.PDF #40
      Tutorial guidelines for writing PIC based sourcecode for Magic
    Sinewaves. Why PIC? Getting started. Tools. First Principles. A
    precision time delay. Delay expansion. Updating. Sync, more..   .  08/04

Click here for the Magic Sinewave library.
Click here for a Magic Sinewave intro.
Click for a 3-phase Magic Sinewave tutorial.
Click for a Magic Sinewave development proposal.

Click here to Order MSD28-05X chips & source code.
Click here for the MSPICPRO.PSL source code.
Click here for additional Consulting services.
Click here to Contact the Author directly.

   Fun With Fields FUNFIELD.PDF #39
      Using PostScript to quickly solve advanced field problems with some
    astonishingly simple math. Gradients, Equipotentials, Laplacians.  12/04

Click here for the FIELDS01.PDF field generator.
Click here for the FIELDS01.PDF field from.

Click here to reach the Math Stuff library.
Click here to reach the PostScript library.
Click here for additional Consulting
services

Click here for the FUNFIELD.PSL source code.
Click here to Contact the Author directly.

   Improved Magic Sinewave Chip NUMSCHIP.PDF #38
      Combined data sheet and application note for a second and improved
    Magic Sinewave demo/evaluation chip. This MSD28D-05X combines
    3-phase zeroing of harmonics 2-22
with improved inputs.            05/04

Click here for the Magic Sinewave library.
Click here for a Magic Sinewave intro.
Click for a 3-phase Magic Sinewave tutorial.
Click for a Magic Sinewave development proposal.

Click here to Order MSD28-05X chips & source code.
Click here for the NUMSCHIP.PSL source code.
Click here for additional Consulting services.
Click here to Contact the Author
directly.

   High Legibility Fonts Tutorial BMFONTS.PDF #37
         Shows how to use the ultra legible precision bitmapped fonts
      along with their file formats and generation and placement utilities.
      Quitey useful for improving lettering on eBay photo images.     05/04

Click to reach the Bitmap Fonts repository.
Click here for the
Bitmap Typewriter utility.
Click to reach the Fonts & Images
library.

Click here for the BMFONTS.PSL sourcecode.
Click here to Contact the Author directly.

   Monthly Logfile Stats Addition HISTOLOG.PDF #36
      Some expansions and add-ons to our custom Log File Reader
      that gives you trailing monthly stats, among with most popular
      long term files, errors, and referrals.                                             05/04

Click for the original Log File Reader tutorial.
Click here for the Auction Help
library.

Click here for the
HISTOLOG.PSL source code.
Click here to Contact the Author directly.

   The Saga of the Dripping Stalactites STALAC.PDF #35
      Celebrating the beauty of applied mathematics, first through a catalog
      of our more obscure "fun with long strings of numbers" topics and
      then by way of the Magic Sinewave timeline history.                   03/04

Click here to reach the Math Stuff library.
Click here for the Magic Sinewave library.
Click here for a Magic Sinewave intro.
Click for a Magic Sinewave development proposal.

Click here to Order MSD-28X chips & source code.
Click here for the SIGVIEW.PSLs source code.
Click here to Contact the Author directly.

   Magic Sinewave Spectrum Analysis SIGVIEW.PDF #34
       The SigView shareware looks like it should be exceptionally useful
     for analyzing both virtual and real world Magic Sinewaves. Brief
     note shows some key sampling & access workarounds.            07/04

Click to reach the SigView website
Click here for the Magic Sinewave
library.
Click here for a Magic Sinewave intro.
Click for a Magic Sinewave development proposal.

Click here to Order MSD-28X chips & source code.
Click here for the SIGVIEW.PSL source code.
Click here to Contact the Author directly.

   Magic Sinewave Demo Hardware! MSCHIPS.PDF #33
     Combined data sheet and application note for the very first available
     Magic Sinewave demo/evaluation chips. This MSD28D-04X offers full
     3-phase compatibility + best zeroing of harmonics 2-22
           04/04

Click here for the Magic Sinewave library.
Click here for a Magic Sinewave intro.
Click for a 3-phase Magic Sinewave tutorial.
Click for a Magic Sinewave development proposal.

Click here to Order MSD-28X chips & source code.
Click here for additional Consulting services.
Click here for the MSCHIPS.PSL source code.
Click here to Contact the Author
directly.

   A PostScript Heap Sort HEAPSORT.PDF #32
        Tutorial and analysis of the heap sort, an exotic search algorithm
      that both offers exceptional speed for large n combined with
      acceptable performance for everyday use.                                     04/04

Click here for the PostScript library.
Click for the HEAPPS01.PSL test & demo code
.
Click here for additional Consulting services.

Click here for the HEAPSORT.PSL source code.
Click here to Contact the Author
directly.

   Some Simple PostScript Sorts PRESORT.PDF #31
       Tutorial and utilities shows a group of bubble sorts and 12x faster
      presorted bubble sorts that are easy to use for smaller n. Optionally
      sorts on popularity instead of alphabetically.                                   12/03

Click here for the PostScript library.
Click for the PRESORT1.PSL  test & demo code.
Click here for additional Consulting services.

Click here for the PRESORT.PSL source code.
Click here to Contact the Author directly.

   PostScript String Conversions STRCONV.PDF #30
     Tutorial shows a collection of crucial and little known PostScript
     programming secrets involving conversion between strings, integers,
     arrays, and dictionaries; sorting and dereferencing routines.       2/04

Click here for the PostScript library.
Click for the older STRCONV.HTML tutorial.
Click here for additional Consulting services.

Click here for the STRCONV.PSL source code.
Click here to Contact the Author directly.

    Using Distiller to run PostScript! DISTLANG.PDF #29
       Acrobat Distiller makes a superb host based PostScript computer!
       Greatly expanded tutorial and update of DISTLANG.HTML reveals
       the key concepts and insider tricks involved.                             12/07

Click here for the PostScript library.
Click for the older DISTLANG.HTML tutorial
.

Click here for additional Consulting services.
Click here for the
DISTLANG.PSL source code.
Click here to Contact the Author
directly.

   Logfile Reader & eBay Analyzer ANALOGEB.PDF" #28
       Tutorial shows how to use new web logfile analysis utilities that
     include automatic eBay hit reports, eBay image theft detection, plus
     detailed individual visitor logs. Totally customizable.                  01/04

Click for the Web Logfile Analyzer utility.
Click for a Web Logfile Analyzer output demo
.
Click for a Web Logfile Analyzer input workfile
.

Click here for additional eBay help.
Click here for the ANALOGEB.PSL source code.
Click here for additional Consulting services.
Click here to Contact the Author
directly.

   Magic Sinewave Quantization MSQUANT.PDF" #27
       Do accurate predictions of the exact changes in Magic Sinewave
     distortion and jitter caused by 8-bit quantization for a selected
     clock frequency. Includes tutorial and links to useful utilities.      11/03

Click for the Magic Sinewave Quantization utility.
Click for the Quantization utility output log data
.
Click for the Quantization utility PDF plots
.

Click here for the Magic Sinewave library.
Click here for a Magic Sinweave
intro.
Click for a
Magic Sinewave development proposal.

Click here for the
MSQUANT.PSL source code
Click here to Contact the Author directly .

   Successful eBay Buyer Strategies EBAYBUY.PDF #26
      A summary of essential rules for eBay buyer success. Understand
    proxy bidding. Proxy bid your max. Bid based on total costs. Ask
    before you bid. Bid odd amounts above resistance thresholds  .   10/03

Click here for the Auction Help library.
Click here for the EBAYBUY.PSL source code.
Click here to Contact the Author directly

   Successful eBay Seller Strategies EBAYSELL.PDF #25
     A summary of essential rules for eBay seller success. Offer unique
    products not available elsewhere. Be a manic and evangelical expert
     in those products. Maximize personal value added. more..            10/03.

Click here for the Auction Help library.
Click here for the EBAYSELL.PSL source code.
Click here to Contact the Author directly .

   Magic Sinewave Visualizations VISMAGSN.PDF #24
     Delay and width versus amplitude plots of the two most useful
     magic sinewaves reveal that 8-bit data storage can be adequate when
     used with care. Only five bytes need stored per amplitude.          7/03

Click here for the Magic Sinewave library.
Click here for a Magic Sinweave
intro.
Click for a
Magic Sinewave development proposal.

Click here for the
VISMAGSN.PSL source code.
Click here to Contact the Author directly .

   Fancy .JPG to .pdf" Conversions JPG2PDF.PDF #23
     A tutorial and code analysis of converting .JPG images into
     PostScript or Acrobat PDF pages
. Includes automatic position
     tracking, simple post editing, and auto-URL expansion linking      7/03

Click here for the EBAYFOTO.PDF demo.
Click here for the Son of eBay Secrets tutorial.
Click here to reach the Acrobat library.
Click here to reach the PostScript library.

Click here for JPG2PDFPSL sourcecode.
Click here to Contact the Author directly .

   My eBay Photo Secrets EBAYFOTO.PDF #22
     Highly detailed tutorial on creating successful eBay product
     photos
. Fundamentals. The "hex" method. The "square" method.
     Dealing with image theft. Links to postproc utilities, more..        7/03.

Click here for the My eBay Secrets tutorial.
Click here for the Son of eBay Secrets tutorial.

Click here for
EBAYFOTO.PSL sourcecode.
Click here to Contact the Author directly .

   Website Video Wipes & Fades FADEWIPE.PDF #21
     Brief tutorial reviews the Windows RevealTrans operator and
    shows how to access a library of 24 wipe, fade, and dissolve screen
    effects. Accessible from newer browsers and other programs.        6/03

Click here to reach the Captain Video library.
Click here to reach the Webmastering library.

Click here for
FADEWIPE.PSL sourcecode.
Click here to Contact the Author directly .

   Gonzo PS Powerpoint Emulator GONZOPOW.PDF #20
     Converting PowerPoint slides for .pdf" web presentation presents all
     sorts of problems that are completely eliminated by using this direct
     raw PostScript slide show emulator. Uses Gonzo utilities.                9/05

Click here to for the MSINTRO1.PDF demo.
Click here to for the DELTAMS1.PDF
demo.
Click here for the
MSINTRO1.PSL sourcecode.

Click here for
GONZOPOW.psl" source code.
Click here to reach the PostScript
library.
Click here to Contact the Author directly .

   Magic Sinewave Distortion Note MINDIST1.PDF #19
       Eight simple workarounds show how to allow 8-bit magic sinewave
     table lookup data
while still preserving very low distortion. The
     techniques include linear deviation, summing , and scaling.      7/03

Click here for the Magic Sinewave library.
Click here for a Magic Sinweave
intro.
Click for a
Magic Sinewave development proposal.

Click here for the
MINDIST1.PSL source code
Click here to Contact the Author directly .

   Fitting Power Curve Data Points POWERFIT.PDF #18
       Tutorial and guide to CURVEFT3.psl" utility shows how to exactly fit
     data points to a power series curve
. Ten or more points are easily
     and exactly fitted using a Gauss-Jordan elimination technique.      5/03

Click here to reach the PostScript library.
Click here to reach the Math Stuff
library.
Click here for the
CURVEFT3.PSL utility.

Click here for
POWERFIT.PSL source code.
Click here to Contact the Author directly

   Dodge & Burn Tutorial & Utility DODGEBUR.PDF #17
       A tutorial on our DODBUR01.psl" utility that gives all sorts of
     image improvement corrections to .BMP images. includes dodges,
     burns, hue & saturation, vignettes, chroma, masking, more...         5/03

Click here for the DODBUR01.PSL utility.
Click here for the
DODGEBUR.PSL sourcecode.

Click here for the Gonzo utilities.
Click here to Contact the Author directly

   PS Runtime Speedup Techniques SPEEDUP2.PDF #16
     Tutorial and guidelines shows you how to speedup the
     runtime of your PostScript-as-Language routines
. Includes
     stopwatch measurement tools, table lookups, more.                       3/03

Click here to reach the PostScript library.
Click here to reach the Acrobat
library.

Click here for the
SPEEDUP2.PSL sourcecode.
Click here to Contact the Author directly

   Digital Camera Swings & Tilts SWINGTLT.PDF #15
     A tutorial on our SWINGT01.psl" utility that provides image
     rectification and distortion correction
for 24-bit uncompressed
    .BMP image files. Makes your vertical edges truly vertical.             3/03

Click here for the SWINGT01.PSL sourcecode.
Click here for the SWINGTLT.PSL sourcecode.
Click here for the Gonzo utilities.

Click here for the Before .BMP test file.
Click here for the Before .JPG example.
Click here for the After .JPG example.

Click here to Contact the Author directly

   Exploring the .BMP data format EXPBMP.PDF #14
     The .BMP data format is essential any time you are post-processing
     any image. Here is a tutorial review and a bunch of utilities that let
     you dramatically improve your images
.                                             5/03

Click here for the Gonzo utilities.
Click here for a Sample Demo.
Click here for more BMP Manipulation help.

Click here for the
EXPBMP.PSL sourcecode.
Click here to Contact the Author directly

   PostScript Disk Access Notes PSDISK03.PDF #13
       Reviews PostScript Level II and Level III disk access, both for the
     AFS PS peripheral drives and the Acrobat (%os%) host access.
     Includes resources, links, utilities, examples, and apps.                  2/03

Click here to reach the PostScript library.
Click here to reach the Acrobat library.

Click here for the PSDISK03.PSL sourcecode.
Click here to Contact the Author directly

   PS Search-and-Replace Utility PSSEARCH.PDF #12
     Does a true 8-bit search and replace of any disk file, including PDF
     files without the reserved character and line ending problems of
    word processors. Has PDF examples and reviews PS disk basics. 12/02

Click here for the actual SEAREPL.psl" utility.
Click here to reach the PostScript library.
Click here to reach the Acrobat
library.

Click here for the
PSSEARCH.PSL sourcecode.
Click here to Contact the Author directly.

   Exploring the Acrobat 5 SDK STARTSDK.PDF #11
     Here's a summary of the rude surprises I found when I started to
     use the new Acrobat 5 SDK. Along with precompiled links for url
     checks, transparency mods, image insertion, and watermarks.  11/02

Click here to reach the PostScript library.
Click here to reach the Acrobat
library.

Click here for the
STARTSDK.psl" sourcecode.
Click here to Contact the Author directly.

   PS internaldict & pdfmark cmdset INTERDIC.PDF #10
     Brief tutorial reviews PostScript's Internaldict features and superexec
    operators. Used to find Distiller's 46 pdfmark commands, most of
    
which appear to be fully documented.                                                9/02

Click here to reach the PostScript library.
Click here to reach the Acrobat library.
Click here for the INTERDIC.PSL sourcecode.


Click for an UNCOMPRESS.API Acrobat plugin
Click here to Contact the Author directly.

   PostScript Acrobat Transparency (!) PSTRANS.PDF #09
     Preliminary tutorial and utility shows how to use PostScript and
     Acrobat Distiller to create full transparency in PDF files
. The
     technique combines raw PostScript with simple post-patching.    12/02

Important Note: This special file is ONLY to be viewed by Acrobat 5
or genuine Adobe PDF 1.4 or higher.

Click for the G9DEMOX.psl" demo sourcecode.
Click for the G9DEMOX.PDF intermediate result.
Click for the G9DEMO.pdf" patched final result.

Click for the G9DEMOY.psl" improved demo sourcecode.
Click for the G9DEMOYX.PDF improved intermediate result.
Click for the G9DEMOY.PDF improved patched final result.

Click for GuruGram #12 "PDF safe" search & replace routines.
Click here to Contact the Author directly.

Click here to reach the PostScript library.
Click here to reach the Acrobat library.
Click here for the
PSTRANS.PSL sourcecode.

   PS Flate Compression Viewer FLATEVUE.PDF #08
     Tutorial reviews use of a new PostScript/Acrobat utility that lets
     you convert Flate compressed objects into plaintext. Flate is a
     LZW variant used in PDF files that is faster and royalty free.  9/02

Click here for the FLATVUE1.psl" utility.
Click here to reach the PostScript library.
Click here to reach the Acrobat
library.
Click here for the
FLATVUE.PSL sourcecode.

Click for an UNCOMPRESS.API Acrobat plugin
Click here to Contact the Author directly.

   "Overunity" battery analysis OVERBATT.PDF #07
     Brief note iinvestigates recent web "perpetual motion"claims. A
     pair of credible explanations includes pulse recharging of lead
     acid batteries plus "not even wrong" rms measurements.      9/02

Click here for an Energy Fundamentals tutorial.
Click here to reach the Pseudoscience library.
Click herefor the OVERBATT.PSL sourcecode
Click here to Contact the Author directly.

   Acrobat "Galley Slave" GALLERY.PDF #06
      Sourcecode and insider secrets for PDF thumbnail gallery
     generation.
The many advantages over HTML include data base
     sourcing, single file delivery and fast images.            7/02

Click here for additional PostScript help.
Click here for more Acrobat PDF assistance.
Click here to view our eBay live auctions.

Click herefor the GALLERY.PSL sourcecode.
Click here to Contact the Author directly.

   Auto-Tracking PDF web links AUTOURL.PDF #05
      Sourcecode and insider secrets for automatically repositioning
     Acrobat url links.
These can be data base entered and are totally
     source document controlled. They move correctly upon editing. 07/02

Click for the Acrobat library.
Click here for the GuruGram05 source code.
Click here to Contact the Author directly.

   Cubic Splines for Image Interpolation BASIS.PDF #04
      Cubic spline Basis Functions are a powerful but little understood
      method of curve control. Tutorial includes fundamentals along with
      application of hires cubic splines to image interpolation.            08/02

Click for the Cubic Spline library.
Click here for the GuruGram04 source code.
Click here to Contact the Author directly.

   Magic Sinewave Fourier Checkplot PLOTD28.PDF #03
      Sourcecode and insider secrets for automatically repositioning
     Acrobat url links.
These can be data base entered and are totally
     source document controlled. They move correctly upon editing.  02/02

Click for the Magic Sinewave library.
Click here for the GuruGram03 source code.
Click here to Contact the Author directly.

   Magic Sinewave Harmonic Spectra SPECD28.PDF #02 
 
    Example of the unfiltered spectra of a typical magic sinewave.
     Shows how all low harmonics are zero and how remaining energy is
     forced high in frequency. For a MS28NDX Magic Sinewave.    01/02

Click here for additional Cubic Spline help.
Click here for more Fonts& Images assistance.
Click here to view our Bargain Pages .

Click here for Harmonic Spectra sourcecode.

Click here for additional Magic Sinewave help.
Click for a Magic Sine wave Development Proposals.
Click here for custom InfoPack consulting services

   Intro Steplock Apnote  IDES01.PDF #01
        Brief trade journal submission summarizes steplock magic
        sinewaves and shows waveforms for a best efficiency steplock-28
       and a delta friendly steplock-28 of amplitude 0.53. With links.  11/01

Click here for additional Magic Sinewave help.
Click for a Magic Sinewwave Development Proposals.
Click here for custom InfoPack consulting services.

  Earlier and Related Columns: .
 top   bot 
.

The GuruGrams largely superseded Don's Tech Musings print
columns, which in turn followed his Hardware Hacker series.

Somewhat less technical topics continue as the Blatant Opportunist
ezines, while the Resource Bin is now a custom InfoPack service.

  For More Help: .
 top   bot 
.

  Ask Don any Tech Related question. 

  Go to the Tech Musings library.

  Explore an Energy Efficiency opportunity.

  Find Instant Research Answers.
 

Please click here to... 

 
   View our eBay Auctions.  Send Don Lancaster email.
   Go to the site directory  Learn patent alternatives.    
   Pick up surplus bargains.  Explore magic sinewaves
   Sponsor a display banner.  Find out what a tinaja is.
   Find research solutions  View recommended books.
   Place an order.  Return to the home page.